Until Apple addresses this is addressed by Apple, here's a handy AppleScript I wrote which quickly saves my open documents and quits InDesign when I experience this. Feel free to use it, though no warranty is implied. Just copy the following text from your browser, Launch ScriptEditor.app, paste, and run. Then Save for later reuse.
tell application "Adobe InDesign CS3"
set nDocuments to (count documents)
set myCount to 0
repeat while myCount < nDocuments
tell active document
if saved then
save
close
else
set myResult to my getTimeStamp()
save to ((path to desktop folder as text) ¬
& "SavedDoc_" & myResult & ".indd") as text
close
delay 1 --Ensures unique time stamp
end if
end tell
set myCount to myCount + 1
end repeat
set nBooks to (count book)
set myCount to 0
repeat while myCount < nBooks
tell active book
save
close
end tell
set myCount to myCount + 1
end repeat
quit
end tell
on getTimeStamp()
set timeStamp to the current date
set nMonth to month of timeStamp as number
if (nMonth < 10) then
set nMonth to "0" & (nMonth as text)
end if
set nYear to year of timeStamp
set nDay to the day of timeStamp
if (nDay < 10) then
set nDay to "0" & nDay
end if
set nHour to hours of timeStamp
if (nHour < 10) then
set nHour to "0" & nHour
end if
set nMinute to the minutes of timeStamp
if nMinute < 10 then
set nMinute to "0" & nMinute
end if
set nSecond to the seconds of timeStamp
if nSecond < 10 then
set nSecond to "0" & nSecond
end if
return {nYear, nMonth, nDay, nHour, nMinute, nSecond}
end getTimeStamp
